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Electronic Structure Under Extreme Uniaxial Strains: Conductance in Metallic Nanocontacts.

Published online by Cambridge University Press:  10 February 2011

Daniel Sánchez-Portal ,
Carlos Untiedt ,
José M. Soler ,
Juan J. Sáenz  and
Nicolas Agraït
Daniel Sánchez-Portal
Affiliation:
Departamento de Física de la Materia Condensada and Instituto “Nicolas Cabrera”, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Carlos Untiedt
Affiliation:
Departamento de Física de la Materia Condensada and Instituto “Nicolas Cabrera”, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
José M. Soler
Affiliation:
Departamento de Física de la Materia Condensada and Instituto “Nicolas Cabrera”, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Juan J. Sáenz
Affiliation:
Departamento de Física de la Materia Condensada and Instituto “Nicolas Cabrera”, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Nicolas Agraït
Affiliation:
Departamento de Física de la Materia Condensada and Instituto “Nicolas Cabrera”, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Abstract

In this work we address the behaviour of electronic structure under uniaxial stress, by first-principles calculations and experiments of conductance in nanometer-sized metallic contactes of Au and Al. These contacts are shown to be specially suitable for this purpose. The conductance behaviour is related to the change with strain of Fermi surface. Both experimental and theoretically Au behaves like the free electron gas but Al has the opposite behaviour.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 499: Symposium DD – High Pressure Materials Research , 1997 , 173
Copyright
Copyright © Materials Research Society 1998

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References

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